/**
 * 判断是否为空
 */
export function validatenull(val) {
  if (typeof val === 'boolean') {
    return false
  }
  if (typeof val === 'number') {
    return false
  }
  if (val instanceof Array) {
    if (val.length === 0) return true
  } else if (val instanceof Object) {
    if (JSON.stringify(val) === '{}') return true
  } else {
    if (val === 'null' || val == null || val === 'undefined' || val === undefined || val === '') return true
    return false
  }
  return false
}

// 判断手机号是否正确
export function validatePhone (val) {
	let reg = /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
	return reg.test(val)
}

//校验银行卡号
export function validateBank(val) {
  let reg = /^([1-9]{1})(\d{14}|\d{18})$/
  return reg.test(val)
}

//正整数
export function isPositiveInteger(val) {
  return /^[1-9][0-9]*$/.test(value);
}

// 验证身份证号
export function validateIdCard (val) {
	if(!val){
		return false
	}
	let num = val.toUpperCase(); //把身份证转换成大写
	if(!(/(^\d{15}$)|(^\d{17}([0-9]|X)$)/.test(num))){
		return false;
	}
	
	let len, re;
	len = num.length;
	if (len == 15) {
		re = new RegExp(/^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/);
		var arrSplit = num.match(re);
		// 检查生日日期是否正确
		var dtmBirth = new Date('19' + arrSplit[2] + '/' + arrSplit[3] + '/'
				+ arrSplit[4]);
		var bGoodDay;
		bGoodDay = (dtmBirth.getYear() == Number(arrSplit[2]))
				&& ((dtmBirth.getMonth() + 1) == Number(arrSplit[3]))
				&& (dtmBirth.getDate() == Number(arrSplit[4]));
		if (!bGoodDay) {
			return false;
		} else {
			// 将15位身份证转成18位
			// 校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。
			var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5,
					8, 4, 2);
			var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4',
					'3', '2');
			var nTemp = 0, i;
			num = num.substr(0, 6) + '19' + num.substr(6, num.length - 6);
			for (i = 0; i < 17; i++) {
				nTemp += num.substr(i, 1) * arrInt[i];
			}
			num += arrCh[nTemp % 11];
			return true;
		}
	}
	if (len == 18) {
		re = new RegExp(/^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/);
		var arrSplit = num.match(re);
		// 检查生日日期是否正确
		var dtmBirth = new Date(arrSplit[2] + "/" + arrSplit[3] + "/"
				+ arrSplit[4]);
		var bGoodDay;
		bGoodDay = (dtmBirth.getFullYear() == Number(arrSplit[2]))
				&& ((dtmBirth.getMonth() + 1) == Number(arrSplit[3]))
				&& (dtmBirth.getDate() == Number(arrSplit[4]));
		if (!bGoodDay) {
			return false;
		} else {
			// 检验18位身份证的校验码是否正确。
			// 校验位按照ISO 7064:1983.MOD 11-2的规定生成，X可以认为是数字10。
			var valnum;
			var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5,
					8, 4, 2);
			var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4',
					'3', '2');
			var nTemp = 0, i;
			for (i = 0; i < 17; i++) {
				nTemp += num.substr(i, 1) * arrInt[i];
			}
			valnum = arrCh[nTemp % 11];
			if (valnum != num.substr(17, 1)) {
				return false;
			}else{
				return true;
			}
		}
	}
}